Home / 30,189.60-45,302.82-19,080.99

Finding the Fourth Proportional to 30,189.60, 45,302.82 and 19,080.99

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Solution

The fourth proportional to 30,189.60, 45,302.82 and 19,080.99 is: 28,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,189.60 : 45,302.82 = 19,080.99 : x
  2. Step 2: Convert to fraction form
    30,189.60/45,302.82 = 19,080.99/x
  3. Step 3: Cross multiply
    30,189.60x = 45,302.82 × 19,080.99
  4. Step 4: Simplify right side
    30,189.60x = 864,422,655.39
  5. Step 5: Solve for x
    x = 864,422,655.39/30,189.60
  6. Step 6: Final answer
    x = 28,633.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.